Dart

Example: Crypt2.ClearEncryptCerts method

Demonstrates how to call the ClearEncryptCerts method. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  final crypt = CkCrypt2();

  // Tell the crypt object to use 3 certificates.
  // Do this by calling AddEncryptCert for each certificate.

  final cert1 = CkCert();
  // ...
  // Load the cert from a source such as a .pfx/.p12 file, smart card, USB token, Apple keychain, Windows certificate store, etc.
  // ...
  crypt.addEncryptCert(cert1);

  final cert2 = CkCert();
  // ...
  crypt.addEncryptCert(cert2);

  final cert3 = CkCert();
  // ...
  crypt.addEncryptCert(cert3);

  // Params for public-key encryption to create PKCS7 enveloped-data
  crypt.cryptAlgorithm = 'pki';
  crypt.pkcs7CryptAlg = 'aes';
  crypt.keyLength = 256;
  crypt.oaepHash = 'sha256';
  crypt.oaepPadding = true;

  final bd = CkBinData();
  // ...
  crypt.encryptBd(bd);

  // Let's say we now want to encrypt something else with different certs..
  // First clear the encryption certs.
  crypt.clearEncryptCerts();

  final cert4 = CkCert();
  // ...
  crypt.addEncryptCert(cert4);

  final cert5 = CkCert();
  // ...
  crypt.addEncryptCert(cert5);

  // ...
  // ...

  // Encrypt using cert4 and cert5.
  crypt.encryptBd(bd);
}